Transcript for 'Friendly Fire' Responsible for American Deaths in Afghanistan

five Americans killed. It looks like friendly fire. Martha Raddatz has the details. Reporter: These were American special operations forces. They were out with Afghan forces. On a security patrol. They were ambushed by the Taliban, coming under heavy fire, so they called in air support, they want war planes to come and help them out. In addition to five American soldiers who were killed, one Afghan soldier as well and we do not know how many wounded. Martha, you have been one of these missions. The mission I was in a fifther jet was very similar to this one. A series of careful steps taken before many Lish shans is dropped. Someone on the ground with those troops essentially confirming the spot where the bombs would be dropped. I'm told on this deadly mission, there was some miscommunication about the grid and clearly the bomb was dropped on the wrong spot, George. Just a tragic mistake. Martha, thanks very much.

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